{
\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}
\begin{tabular}{l*{2}{ccc}}
\toprule
            &\multicolumn{3}{c}{\underline{Ports}} &\multicolumn{3}{c}{\underline{Countries}}\\
            &        mean&      median&          sd&        mean&      median&          sd\\
\midrule
Exposure to failed British banks&        0.07&        0.00&      (0.19)&        0.09&        0.03&      (0.14)\\
Exports     &      118.76&       27.00&    (215.53)&       12.20&        2.14&     (31.89)\\
Share exports to UK&        0.39&        0.30&      (0.34)&        0.60&        0.69&      (0.38)\\
Destinations (\# countries)&        7.63&        5.00&      (7.21)&        3.85&        2.00&      (8.06)\\
Distance to destination (km k)&        5.06&        4.80&      (3.31)&        6.52&        6.31&      (3.51)\\
British banks&        6.03&        3.00&      (7.54)&       13.27&        9.00&     (13.65)\\
Non-British banks&        0.45&        0.00&      (0.82)&        1.28&        0.00&      (3.28)\\
Fraction in British Empire&        0.34&        0.00&      (0.47)&        0.33&        0.00&      (0.47)\\
\midrule
\(N\)       &         289&            &            &          55&            &            \\
\bottomrule
\end{tabular}
}
